judelson



Jan. 5 1926.

J. JUDELSON DRIER 2 Sheets-Sheet Original Filed July 28, 1925 INVENTOR L/l/J juf/ som ATTORNEY Jan. 5,1926. A Re,1 6,244

lJ. JUDELSON DRIER 2 Sheets-Sheet 2 Original Filed vJuly 28, 1923 BY A ATTORNEY Ream.: Jag.. s, 192e.

PATENT oFFicE.

.Tomos .TUDELsoIL or NEW Yonx, N. Y.'

DRIER.

Original No..1,'513,597, dated Gctober 28, 1924, Serial No. 654,362, led Jnly 28, 1923. Application for Areissue'iilerl October 9A,

lTo all whom it may concern:

Be it known that I,JULI Us JUDELsoN, a citizen of the United States, residing at New Yorkcity, in the borough of Bronx, county of Bronx, city and State of New York, have invented a new and useful vIm rovement in Driers,' of which the following 1s a specification.

Y This Ainvention relatesyto improvements in driers More particularly it is directed to a drier ofthe character described adapted for iisefin apartment houses where the driers ordinarily employed have a plurality of separate drying compartments.

O ne object of the invention is to provide 'aQdrier of the character described with a vheatingy apparatus having separate heating units so constructed and arranged as to lpermit of heating one or more compartments separately or one or more pairs of compartments separately, or heating a plurality of compartments simultaneously. l.Another object is tol provide heating apparatus of the character described which shall utilize to a maximum degree the heat units from the burner or burners, and insure an even temperature throughout. the interior of the drier. A further object is to provide apparatus of the character described which shall insure a proper andl eliicienty circulation of dry heated air through the drier so as to rapidly.

and uniformly dry the articles or material therein lwithout injury thereto, the gases or fumes from the heating a paratus being keptfrom direct contact wlthl the interior vof the drying compartment. 1

' A still further object is to provide in a drier of the character described, a heating apparatus which shall be eilicient van economical in operation to a high degree and comparatively cheap to manufacture.

`Other objects of this invention will in part be obvious `and in part hereinafter-pointed out. f

I accomplish the foregoing and other objects in a general way by means of a multil In the accompanying drawin `1925. Serial No. 64,701.

ple heating unit of the improved construction hereinafter described, and so arranged as to heat one drying compartment, or a pair of drying compartments separately, or a plurality of drying compartments, or pairs of compartments simultaneously.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of application will be indicated in the following claims.v

in which is shown one of the various possib e illustrative embodiments of this invention,

Fig. 1 is a sectional plan view of one dou'- ble heating unit;

Fig. 2 is a view in vertical lon itudinal section through a ortion of the rier casing and throu h tlie heating unit, the section through tie latter being taken on line 2-2 in Fig. 1.;

Fig. 3 is a view in front end 'elevation of the heating unit shown in Fig. 1; and

Fig. 4 1s a view in transverse section` through the drier and the heating units, the view of the two double units at the left being taken throu h the front portion of the drler, and the View of the unit at the right being taken through the rea-r of the drier.

Referring in detail to the drawing, 1 represents a drier casing of any approved construction but which is preferably divided by vpartitions 2 into a series of double compartments, in each of which a shorter partition 3 is provided to divide each double compartment into separate drying chambers.

Each double compartment is provided in its lower portion with a double heating unit A, which serves to heat both chambers of the double compartment, and which will now be described in detail.

Each double heating unit A comprises an elongated flue box 4, of general V-shape in `plan at itsforward end, and having a longitudinal lpartition 5 therein which is of general V-shape at its rear end, and co-o crates with the V-shaped forward end of t e box to divide the box into a pair of relatively long lues 6.

In the forward portion of each flue 6 a gas burner 7 or other heating element is 1ocated, said bu-rner being controlledby. cocks 8 and supplied with fuel by a pipe 9.

Within each double compartment of the casing 1, and at therear thereof, I provide a relatively wide box 10 extending into the adjacent drying chambers and which is perforated in its front and bottom as shown at 11. This box 10 is provided on its top at its center with a tapering outlet 12 and the latter communicates at its upper end with a chimney 13.

A vertical pi e 14 is connected by a Y- coupling 15 wit the inner ends of the pair of iues 6 and projects upwardly through the box 10and terminates in the tapering outlet 12 thereof.

On topxof the flue box A and directl above each flue 6, return iues 16 are locate These return flues are preferably of box like form, appreciably smaller in diameter -than the lines 6, and preferably of inverted V-shape in cross section. O nings 17, 17 are provided in the top of ues 6 connecting the latter'with the return fines 16, and these openings are s aced an appreciable distance from the en s of the fines.

Forwardly and downwardly curved baffles 18' are rovided in the ilues 6 below the openings 1i) to properly direct the circulation of air, and it will be noted that the rear openings 17 and baffles 18 are larger than the forward openings and bales, to insure best results.

Each burner 7 is provided with anelongated baille 19 above the same. These baffles are preferably inverted V-shape in cross-section and are supported on brackets 20 resting upon burner platforms 21. The heater is supported above the floor of the casing 1 on legs 22 or other suitable mounting.

The forward end of each flue 6 is provided with a screened air inlet door 23 to admit the necessary air to aid combustion', and for circulationthrough the apparatus.

In each of the single compartments of the drier casing 1, are suitable supporting racks 24 for the articles or materials to bev dried, and each double heating unit serves to heat and dry the articles in two of these single compartments, as will now be explained.

The operation is as follows:- v

Air enters the forward end of the flue 6. vSome of this air used up in combustion in the burners, but the main portion thereof is heated by the burners to the desired temperature so as to rovide a circulatin hc'ating medium which circulates throng the flues 6 and 16 and transmits its heat to" the air in the drying compartment above the heating units. The heated air flows through flue 6 towards the rear end thereof where at the opening 17 a large portion thereof passes through said opening into the fines 16 and is returned into flue 6 through the openin 17 at the other end for recirculation. ome of the air in line 6 passes directly into the Y-coupling 15 and'thence upward throu h pipe 14 into the box, outlet 12 and up the cimney 13. The recirculated, heated air is reheated as it passes over the flue 6 and near the burners and then asses lout through the rear end of the liue 6 1n the manner just described. The direction of the iow of air is indicated by the arrows in Fig. 2.

The upward draft in the chimney 13 is effectively aids this circulation and at the same time draws the moisture laden air in the drying compartments through the openings 11 of the box 10, thus exhausting t e moist air through the chimney 13, as will be readily understood.

It will be understood, of course, that each heating unit may be operated independently, or all of the heating units operated simultaneously as desire It will be noted that the heating ap aratus is a separate and distinct unit space and sealed from the drying compartment so that none of the gases or noxious fumes or vaporsI coming from the fabrics enter the drym0 chamber, thusv eliminating all possible injury therethrough to the materials or articles being dried.

I have found that with the apparatus above described, very efficient, rapid and economical dr ing compartments may be effected with t e maintenance of a uniform temperature throughout the drying compartments.

It will thus be seen that there is provided apparatus in which the several objects of this invention are achieved, and which-is well adapted to meet the'conditions of prac-v tical use.

As various possible embodiments might be-made of the above invention, and as various chan esv might be made in the'embodiment a ove set forth, it is to be understood that all Vmatter herein set forth or shown' in the accompanying drawings is to be interpretedi as villustrative 'and not in a limiting sense.

Having thus described my invention, v I claim as new and desire to secure by Letters Paten#J 1. In adrier, a heatin unit comprising an. elongated box, a longitudinal partition in the box dividing the same into a pair of main ilues, and a return fluel on top of the -main flues and communicating therewith.-

2. In a drier, a heating unit, comprising anv elongated box, a longitudinal partition in the box dividing the same into a pair of main flues, and a return Hue on top of the main Hue and communicating therewith, said return Hue being of an appreciably smaller cross-sectional diameter than the main Hues.

3. In a drier a "heating unit comprising an elongated box, a longitudinal partition in the box dividing the same into a pair of main Hues, and a return Hue'on top of the main Hue and communicating therewith, said return Hue being of an appreciably smaller cross-sectional diameter than the main Hues, and being of substantially invei'ted V-shape in cross-section.

4. In a drier, a heating unit comprising an elongated box, a longitudinal partition in the box dividing the same into a pair of main Hues, and a return Hue on top of the main Hues and communicating therewith, said main Hues having downwardly projecting baffles at the points of communicatio with the return Hues.

5. A double heating unit comprising a box, a longitudinal partition in the box dividing the same into a pair of main Hues, a heating element in the forward portions of the main Hues, and return Hues on top of the main Hues.

6. A double heating unit comprising a.

pair of box Hues, return Hues above the box Hues, heating elements in the forward ends of the box Hues, a perforated air outlet box, a chimney connected to the box, a coupling communicating with the rear ends of the box Hues and a pipe connected to said coupling and extending through `the box into thev air outlet boxes are provided in both chambers of each compartment and with which the outlets of the double heating units are in communication.

9. In a drier having a casing, a heating unit therefor extending substantially the entire length of the bottom of the casing and comprising an elongated tubular portion, a burner within said portion at one end thereof, and ventin means connecting with the opposite end o said portion.

10. In a drier having a casin a heating unit therefor extending substantially the entire length of the bottom of the casin and comprising an elongated tubular portion, a burner within said portion at one end thereof, and ventin means connecting with the opposite end o said portion, said means having openings communicating with the interior of the casing above said unit.

11. In combination with a drier casing of the character described, a heating unit comprising a conduit member, a burner within said member at one end thereof, and means for venting the unit connected to the opposite end of said member, said means including a passage communicating with the interior of the drier casing.

12. Adi-ier of the character described compi'ising a casing having a venting Hue and a heating unit in said -casing atl the bottom thereof, said unit comprising a pluralityv of conduit members, heating means connecting with one end of each of said members and means joining the oppositeends of said member to a venting Hue. l

13. A drier of the character described comprising a casing having a venting Hue, and a heating unit in said casing at the bottom thereof, said unit comprising a plurality of' 'conduit members, heating means connecting with one end 'of said members and means ]oining the opposite ends of said members to a venting Hue, said means having a perforated portion communicatin'g with the interior of the casing to permit drawing off of the moist laden air therefrom.

14, In a drier of the character described, a heating unit comprising a plurality of parallelly aligned elongated tubular members, heating means connecting with one of the ends of each of said members, and a chimney connecting the opposite end of said members serving as a ventfor said unit.

15. In combination with a drier lcasing of the character described, a heating unit comy prising a plurality of tubular members parallelly extending substantially the length of the bottom of said casing, heating means Within said members, and a venting Hue for said unit, said means and Hue being positioned on opposite ends of said members respectively.

16. In combination with a drier casing of the character described, a heating unit comprising a plurality of tubular members parallelly extending substantially the length of the bottom of said casing, heating means within said -nembers and a venting Hue for said unit, said means and flue being positioned on opposite ends of said members, said flue having passages communicating with the interior of said casing to permit drawing off of the moisture-laden air therefrom.

17. A drier of the character described comprising a casing, a heating unit extendingl rparallelly disposed, heating elements in one of the ends of the lues, a coupling joining the opposite end of the iues together, and venting means connected to said Coupling.

18. A drier of the character described com-- prising a easing, a heating unit extending along the bottom interior side of said easing, said unit including a plurality of flues parallelly disposed7 heating elements in one of the ends of the fines, a coupling joining the opposite end of the iiues together, and Venting means connected to said coupling, said means having through passages 'communieating with the upper interior portion of the easing over said unit.

Signed at New York city, in the county of New York and State of New York, this 14th day of November', 1925.

JULIUs JUDELsoN. 

